mp3dec_own_fp.h

这是在PCA下的基于IPP库示例代码例子,在网上下了IPP的库之后,设置相关参数就可以编译该代码.

/*//////////////////////////////////////////////////////////////////////////////
//
//                  INTEL CORPORATION PROPRIETARY INFORMATION
//     This software is supplied under the terms of a license agreement or
//     nondisclosure agreement with Intel Corporation and may not be copied
//     or disclosed except in accordance with the terms of that agreement.
//          Copyright(c) 2005 Intel Corporation. All Rights Reserved.
//
*/

#ifndef __MP3DEC_OWN_FP_H__
#define __MP3DEC_OWN_FP_H__

#include "math.h"

#include "mp3dec_own.h"
#include "mp3dec_dewindow_fp.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef float samplefloat[2][576];
typedef float samplefloatrw[2][18][32];

struct _MP3Dec {
    MP3Dec_com com;
    VM_ALIGN16_DECL(unsigned int) global[2880];
    VM_ALIGN16_DECL(float) prevblk[2][576];
    float tmp_bfr[32];
    float filter_bfr[2][16][64];

    samplefloat *smpl_xr;       // out of dequantizer
    samplefloat *smpl_ro;       // out of reordering
    samplefloat *smpl_re;       // out of antialiasing
    samplefloatrw *smpl_rw;     // out of imdct
    samplefloat *smpl_sb;       // out of subband synth

    float   GlobalScaleFactor[2][2];

    IppsMDCTInvSpec_32f *pMDCTSpecShort;
    IppsMDCTInvSpec_32f *pMDCTSpecLong;
    IppsDCTFwdSpec_32f  *pDCTSpecFB;

    unsigned char *mdct_buffer;

    int dctnum_prev[2];

    short   m_ptr[2][2];
    short   m_even[2];
};

extern float mp3dec_scale_values[64];

int mp3dec_SubBandSynth(MP3Dec *state, int ch, int num);
int mp3dec_decode_data_LayerI(MP3Dec *state);
int mp3dec_decode_data_LayerII(MP3Dec *state);
MP3Status mp3dec_decode_data_LayerIII(MP3Dec *state);

#ifdef __cplusplus
}
#endif

#endif